- Create AssetsAdapter to populate the Assets Spinner in SendTransactionFragment.

- Use BalanceDetailViewModel to fetch the Balance details from the database and pass them to the AssetsAdapter.

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/AssetsAdapter.kt

@@ -0,0 +1,42 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.TextView
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+
+
+
+class AssetsAdapter(context: Context, resource: Int, data: List<BalanceDetail>) :
+    ArrayAdapter<BalanceDetail>(context, resource, data) {
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        var cv = convertView
+
+        if (cv == null) {
+            val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+            cv = inflater.inflate(android.R.layout.simple_spinner_item, parent, false)
+        }
+
+        val text: TextView = cv!!.findViewById(android.R.id.text1)
+
+        val balanceDetail = getItem(position)
+        text.text = balanceDetail!!.symbol
+
+        return cv
+    }
+
+    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
+        val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val v = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false)
+        val text: TextView = v.findViewById(android.R.id.text1)
+
+        val balanceDetail = getItem(position)
+        text.text = balanceDetail!!.symbol
+
+        return v
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt

@@ -3,25 +3,44 @@ package cy.agorise.bitsybitshareswallet.fragments
 import android.Manifest
 import android.content.pm.PackageManager
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
 import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
 import com.google.zxing.BarcodeFormat
 import com.google.zxing.Result
 import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.adapters.AssetsAdapter
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+import cy.agorise.bitsybitshareswallet.viewmodels.BalanceDetailViewModel
+import cy.agorise.graphenej.Invoice
 import kotlinx.android.synthetic.main.fragment_send_transaction.*
 import me.dm7.barcodescanner.zxing.ZXingScannerView
+import java.math.RoundingMode
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.util.Locale
 
 class SendTransactionFragment : Fragment(), ZXingScannerView.ResultHandler {
+    private val TAG = this.javaClass.simpleName
 
     // Camera Permission
     private val REQUEST_CAMERA_PERMISSION = 1
 
     private var isCameraPreviewVisible = false
 
+    private var mBalancesDetails: List<BalanceDetail>? = null
+
+    private lateinit var mBalanceDetailViewModel: BalanceDetailViewModel
+
+    private var mAssetsAdapter: AssetsAdapter? = null
+
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_send_transaction, container, false)
     }
@@ -32,6 +51,15 @@ class SendTransactionFragment : Fragment(), ZXingScannerView.ResultHandler {
         verifyCameraPermission()
 
         fabOpenCamera.setOnClickListener { if (isCameraPreviewVisible) stopCameraPreview() else verifyCameraPermission() }
+
+        // Configure BalanceDetailViewModel to show the current balances
+        mBalanceDetailViewModel = ViewModelProviders.of(this).get(BalanceDetailViewModel::class.java)
+
+        mBalanceDetailViewModel.getAll().observe(this, Observer<List<BalanceDetail>> { balancesDetails ->
+            mBalancesDetails = balancesDetails
+            mAssetsAdapter = AssetsAdapter(context!!, android.R.layout.simple_spinner_item, mBalancesDetails!!)
+            spAsset.adapter = mAssetsAdapter
+        })
     }
 
     private fun verifyCameraPermission() {
@@ -82,7 +110,34 @@ class SendTransactionFragment : Fragment(), ZXingScannerView.ResultHandler {
     }
 
     override fun handleResult(result: Result?) {
-        Toast.makeText(context!!, result!!.text, Toast.LENGTH_SHORT).show()
+        try {
+            val invoice = Invoice.fromQrCode(result!!.text)
+
+            Log.d(TAG, "QR Code read: " + invoice.toJsonString())
+
+            tietTo.setText(invoice.to)
+
+            for (i in 0 until mAssetsAdapter!!.count) {
+                if (mAssetsAdapter!!.getItem(i)!!.symbol == invoice.currency.toUpperCase()) {
+                    spAsset.setSelection(i)
+                    break
+                }
+            }
+            tietMemo.setText(invoice.memo)
+
+
+            var amount = 0.0
+            for (nextItem in invoice.lineItems) {
+                amount += nextItem.quantity * nextItem.price
+            }
+            val df = DecimalFormat("####.#####")
+            df.roundingMode = RoundingMode.CEILING
+            df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
+            tietAmount.setText(df.format(amount))
+
+        }catch (e: Exception) {
+            Log.d(TAG, "Invoice error: " + e.message)
+        }
     }
 
     override fun onResume() {

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/BalanceDetailRepository.kt

@@ -18,5 +18,4 @@ class BalanceDetailRepository internal constructor(context: Context) {
     fun getAll(): LiveData<List<BalanceDetail>> {
         return mBalanceDetailDao.getAll()
     }
-
 }

app/src/main/res/drawable/send_fab_background.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android" >
     <corners
-        android:bottomLeftRadius="100dp"
-        android:topLeftRadius="100dp" />
+        android:bottomLeftRadius="60dp"
+        android:topLeftRadius="60dp" />
     <solid android:color="#5fcaff" />
 </shape>

app/src/main/res/layout/fragment_send_transaction.xml

@@ -157,8 +157,8 @@
 
         <View
             android:id="@+id/vSend"
-            android:layout_width="130dp"
-            android:layout_height="140dp"
+            android:layout_width="120dp"
+            android:layout_height="120dp"
             android:layout_marginEnd="0dp"
             android:background="@drawable/send_fab_background"
             app:layout_constraintEnd_toEndOf="parent"
@@ -169,8 +169,8 @@
             android:id="@+id/btnSend"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginTop="24dp"
-            android:layout_marginEnd="10dp"
+            android:layout_marginTop="15dp"
+            android:layout_marginEnd="15dp"
             app:fabCustomSize="90dp"
             app:maxImageSize="70dp"
             app:srcCompat="@drawable/ic_arrow_forward"